Doom Closed Beta can't record

[macula]

I have small problem although not sure what to do about it:
EPILEPSY WARNING
https://www.youtube.com/watch?v=BWKhlCn5xmI

As you can see it holds on one frame and keeps blinking without recording anything I do on screen but while I play everything alright.

Also while I play HUD doesn't show up to me while in other games it does I already read some threads about it and apparently same thing happened with Wolfenstein New Order game so I guess this last one is known issue.

Any ideas?